Modern Aeronautics—I
A Review of some Outstanding Problems
Volume 86, Issue 2226supp
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Features
Origin of the Nonius
The Aurora
Is it possible to explain it by means of a Copuscular Ray Theory
The Psychology of Color–II
Color as a form of Consciousness
Factors Influencing the Spread of Parasites
Ancient Methods for Stripping Films
Imports of Palm Oil
Waterproofing Compositions
National Economy in England
Use of Chromic Acid and Hydrogen Peroxide as an Etching Agent
The Ornithopter
How can Soft Coal be Burned without Smoke in Marine Boilers?
Valonia Tanning Material
Science applied to War
Substitutes for Wheat
Employed in Making Bread for the French Army
Printing Ink for Half-Tone Work
Position-Light Signals for Railroad Service
The use of Soap Films
In solving Torsion Problems
On Severe Winters
Correspondence
Contact Insecticides
Physical Properties Governing their Efficacy